A male bodybuilder starts taking injections of testosterone (an anabolic steroid) on a daily basis. After 3 weeks, which of the following would you not expect to observe?
A) increased sex drive
B) decreased levels of GnRH
C) decreased levels of LH and FSH
D) decreased levels of DHT
E) None of the answers is correct.
Answer: D
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Most veins below the diaphragm drain into the __________.
What will be an ideal response?
Tonsils have multiple invaginated outer edges called ________ that help trap material.
A. fissures B. crypts C. sinuses D. trabeculae E. clefts
How is autocrine regulation best described?
A. Chemical regulators are released directly into blood vessels. B. Chemical regulators released by cells affect the functional status of different kinds of cells in the vicinity of the secretory cell. C. Chemical regulators affect the same cells that produce them. D. Chemical regulators reach their site of action through a duct. E. Chemical regulators are continuously released in constant amounts by the cell.
The sum of all the chemical reactions that occur in a cell is called
A. metabolism. B. denaturation. C. synthesis. D. emulsification.